In this week’s top stories: As deliveries continue to increase, we learn more about the Tesla Model 3, Tesla discontinues its cheapest Model S option, Hummer unveils its all-electric vehcile, and much more. Head below for a full rundown of this week’s news…

A new patent this week offered a more detailed look at the Tesla Model 3’s unique HVAC system. The Model 3 maintains a clean interior aesthetic thanks to its “high aspect ratio” vent.” The patent explains that the goal is to provide a less “disruptive” and more “uniform design” compared to other cars.

Tesla is also working to expand consumer deliveries of the Model 3 as it starts work on a consumer-facing design studio that will allow customers to customize their Model 3 with color options, wheels, and interior finishes.

Finally, Tesla discontinued its cheapest Model S tier this week. The company has confirmed that it’s no longer selling the rear-wheel drive Model S 75, which was priced at $69,500 in the United States. With that discontinuation of that model, the Model S now sits at a base price of $74,500.